h-r-t.com
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HRT - Heart Rate Turbulence - is the physiological, bi-phasic response of the sinus node to premature ventricular contractions. It consists of a short initial acceleration followed by a deceleration of the heart rate. HRT can be quantified by two numerical parameters, namely the Turbulence Onset and the Turbulence Slope. The underlying mechanisms of HRT have not been fully identified. HRT is most probably an autonomous baro-reflex.
